Software · head to head
PostHog vs Auth0
PostHog
Software
The single platform to analyze, test, observe, and deploy new features
- From
- Free
- Rated
- -
The short version
- Each has a real cost: PostHog the free tier covers 1M events, 5K web session recordings and 2.5K mobile recordings per month before usage-based billing starts; Auth0 free tier limited to 25,000 monthly active users, requiring upgrade for growth beyond that
- They diverge on capability: PostHog covers Product analytics, Auth0 covers Universal login.
Where they differ
Only the attributes on which PostHog and Auth0 actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in PostHog
- Product analytics
- Session recording
- Feature flags
- A/B testing
- Heatmaps
- SQL access
- Data warehouse
- Apps platform
Only in Auth0
- Universal login
- Social login
- Multi-factor authentication
- Passwordless
- User management
- Anomaly detection
- Extensibility
- Machine to machine
Both cover
- Slack
- Segment
- SOC2
- GDPR
- HIPAA
What people use each for
The jobs each tool is most often brought in to do.
PostHog
- Product analyticsnot Auth0
- Feature experimentationnot Auth0
- User behavior trackingnot Auth0
- A/B testingnot Auth0
- Debug production issuesnot Auth0
Auth0
- B2C authenticationnot PostHog
- B2B authenticationnot PostHog
- B2E authenticationnot PostHog
- API securitynot PostHog
- Mobile app securitynot PostHog
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
PostHog
- The free tier covers 1M events, 5K web session recordings and 2.5K mobile recordings per month before usage-based billing starts
- Accounts without a card on file are limited to 1 project; adding one raises it to 6
- Data retention is 1 year until a card is added, which extends it to 7 years
- Support is community-only until the account is on a paid plan
- Error tracking is capped at 100K exceptions and surveys at 1500 responses per month on the free tier
Auth0
- Free tier limited to 25,000 monthly active users, requiring upgrade for growth beyond that
- Advanced features like MFA and RBAC only available on paid Essentials tier and above
- Ownership by Okta introduces risk that independent product roadmap may change
Pricing, plan by plan
PostHog
Free- FreeFree
- 1M events/month
- 5K sessions/month
- Unlimited users
- Paid$undefined/month
- $0.00031/event
- $0.005/session
- Advanced permissions
- Enterprise$undefined/month
- SAML SSO
- Advanced security
- Dedicated support
Auth0
Free- FreeFree
- Up to 25,000 monthly active users
- Basic authentication
- Email/password login
- Essentials (B2C)$35/month
- Unlimited MAUs beyond free tier
- Multi-Factor Authentication
- Role-Based Access Control
- Professional (B2C)$240/month
- All Essentials features
- Advanced security
- Custom branding
Which should you pick?
Choose PostHog if
- You need product analytics.
- You want to start without paying.
- You work on Web, Ios, Android, Api.
- You also want session recording.
Choose Auth0 if
- You need universal login.
- You want to start without paying.
- You work on Web, iOS, Android.
- You also want social login.
Questions people ask
- Is PostHog or Auth0 better?
- Neither clearly leads. PostHog starts at Free and Auth0 at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, PostHog or Auth0?
- PostHog starts at Free and Auth0 at Free.
- Does PostHog or Auth0 run on more platforms?
- PostHog runs on Web, Ios, Android, Api. Auth0 runs on Web, iOS, Android.
- Can I use PostHog for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is PostHog best used for?
- PostHog is most often used for product analytics, feature experimentation, user behavior tracking, a/b testing. Of those, product analytics and feature experimentation are not what Auth0 is typically brought in for.
- What can PostHog do that Auth0 cannot?
- PostHog covers Product analytics, Session recording, Feature flags, A/B testing. Auth0 covers Universal login, Social login, Multi-factor authentication, Passwordless. Both handle Slack, Segment, SOC2, GDPR.
Answered from the vendors’ own pages
Auth0: How much does Auth0 cost?
Auth0 has a Free tier for up to 25,000 monthly active users (MAUs). Paid plans start at $35/month (Essentials B2C) and scale to $240/month (Professional B2C) and higher for Enterprise. Pricing scales with MAU usage.
SourceAuth0: Does Auth0 include Multi-Factor Authentication?
No. MFA, RBAC (Role-Based Access Control), and premium support are not included in the free tier and require upgrading to paid Essentials plans or higher.
SourceAuth0: Is Auth0 independent or part of a larger company?
Auth0 was acquired by Okta in May 2021 for $6.5 billion. It now operates as a subsidiary business unit within Okta, but maintains its own brand and operations.
SourceAuth0: Who should use Auth0 vs Okta?
Auth0 is developer-focused and serves customer identity use cases (B2C). Okta serves workforce identity (B2B) and has broader enterprise features. Auth0 now serves both markets post-acquisition but maintains its developer-friendly positioning.
Source